Noncovalent Functionalization of Disentangled Boron Nitride Nanotubes with Flavin Mononucleotides for Strong and Stable Visible-Light Emission in Aqueous Solution
Noncovalent Functionalization of Disentangled Boron Nitride Nanotubes with Flavin Mononucleotides for Strong and Stable Visible-Light Emission in Aqueous Solution
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DOI：
10.1021/am1010699
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发表时间：
2011-03-01
影响因子：
9.5
通讯作者：
Serizawa, Takeshi
中科院分区：
文献类型：
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作者：
Gao, Zhenghong;Zhi, Chunyi;Serizawa, Takeshi
通过黄素单核苷酸（FMN）对氮化硼纳米管（BNNT）进行非共价功能化，成功制备了强且稳定的可见光发射氮化硼纳米管/生物分子纳米杂化物。原子力显微镜显示纳米杂化物在水溶液中具有良好的分散性。红外吸收光谱揭示了FMN和BNNT侧壁之间存在强的π - π堆积相互作用。重要的是，荧光光谱表明纳米杂化物在可见光谱范围内具有高荧光性。此外，这种荧光具有独特的pH依赖性和热稳定特性。这些纳米杂化物可用于构建在较宽的pH和温度范围内起作用的新型荧光成像探针。
Strong and stable visible-light-emitting boron nitride nanotube (BNNT)/biomolecule nanohybrids were successfully fabricated via noncovalent functionalization of BNNTs with flavin mononucleotides (FMN). Atomic force microscopy showed excellent dispersion of the nanohybrids in aqueous solution. Infrared absorption spectroscopy revealed strong pi-pi stacking interactions. between FMN and BNNT sidewalls. Importantly, the fluorescence spectra revealed that the nanohybrids were highly fluorescent in the visible-light spectral range. Moreover, this fluorescence had unique pH-dependent and thermally stable properties. These nanohybrids might be used to construct novel fluorescence imaging probes that function over a wide pH and temperature range.